Fastening means



Jan. 19, 1932. E, LE 1,841,760

FASTENING MEANS Filed Feb. 6, 192's INVENTOR. Wafl;

A TTORNE Y.

Patented Jan. 19, 1932 UNITE srarss EDWIN A. OLLEY, OF SYRACUSE, NEW YORK, ASSIGNOR TO CROUSE-HINDS COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK FASTENING MEANS Application filed February 6, 1929. Serial No. 337,976.

This invention relates to a fastening means or clamp to secure two parts together as a cover to a box.

The invention consists in the novel features and in the combinations and construct-ions in all the views.

The invention relates particularly to securing trim or facing on a panel board cabinet.

This invention falls within the same general class as my copending application, Sr. No. 336,278, filed January 30, 1929.

Figure 1 is a side elevation partly in section, partly broken away of the device in operated position.

Figure 2 is a sideelevation of the device I and contiguous portions of the trim in section.

Figure 3 is an inverted plan view showing the device in operative position.

Figure 4c is an end view in elevation partly in section.

1 designates the side walls of the box or.

panel board cabinet bent over to form a flange 2.

3 designates the trim or cover of the box.

4 is a support with side walls 5 and connecting the portion 6. The general contour of the side walls is U shaped with a portion of the same extending through a hole in the trim or cover and bent over as shown at 7. This support is stamped from heavy sheet metal and is secured to the trim or cover by pinching together the extended overturned portions of the side walls, inserting them through an opening in the trim, and allowing them to spring back in natural position.

This provides an efficient method of attaching the support to the trim or cover and avoids riveting or spot welding.

Pivots 8 struck from the walls of the support extend from the inner side or" the walls of the support 4: near the trim 9 is a crescent shaped or clamp g one member or lever pivoted, preferably at end and formed with an enlarged central portion through which is drilled hole 10.

This aw is movably mounted upon the piv ots 8 as shown at 11. The free end of the jaw is formed with a sharp cutting edge as shown at 12.

13 is a face plate or concave washer carried by the trim or cover of the box. This washer covers the opening in the trim and makes a neat appearing finish.

A screw 15 passes through an opening in the face plate which is sufiiciently large to give a free angular movement of the screw without movement of the face plate. The screw 15 extends between the side walls of the j aw 9 at an angle to the jaw or clamping member and is threaded through anut 14 which coacts with the holes 10 in the central portion of the The nut is so located in the holes 10 as to constitute a simple and economical pivotal connection be,- tween the nut and the clamping member. Upon turning the screw in clockwise direction, the nut is threaded upon the screw and by a continued turning of the screw, the jaw 9 is caused to move towards the trim and eventually engage the flange 2 or" the cabinet or box as shown at 16.

Due to the sharp cutting edge 12 of the jaw, an efiicient ground connection is maintained between the trim and the panel board cabinet.

hat I claim is:

1. The combination of a panel board cabinet and trim to be clamped together, a two wall support carried by the trim, a clamping member pivotally mounted at one end to the support and its other end formed with a sharp cutting ed e, a nut coacting with the middle portion of the clamping member, a screw threaded through the nut and coacting with a face plate carried by the trim, whereby the sharp edge of the clamping member is brought into engagement with the contiguous portion of the cabinet forming an electrical ground connection.

2. A clamping device comprising a support with opposing walls, an intermediate wall connecting the opposing walls, a clamping member pivoted at one end between the opposing walls of the support, a nut journalled in the middle part of the lever, a screw extending between the opposing walls and threading into the nut.

3. The combination of two parts to be clamped together, one part having afiixed thereto a two wall support, a clamping member having one end pivoted between the walls of the support, a threaded member coacting with said clamping member between the ends thereof, a screw passing through said part and threading into the threaded member, whereby upon turning movement of the screw, the clamping member is moved into engagement with the other part.

4. In a fastening device for clamping two parts together comprising a twowall support secured to the underside of one of said parts, a clamping member freely pivoted at one end between the walls of the support and means operable from the outer side of said part and eoacting with the clamping member to move the same into engagement with the other part.

5. In a fastening device for clamping two parts together eon'lprising a two-wall support fixed to the underside of one of said parts, a clamping member loosely pivoted at one end between the walls of the support, a threaded member secured to the clamping member between the ends thereof, screw means extending through said pait between the walls of the support and threading into the threaded member, said screw means being operable from the outer side of said part to move the clamping member toward the same.

6. In a fastening device for clamping two parts together, one of said parts being pro vided with an opening, a two-wall support depending from the underside of said part and having a portion of said walls extending through and overlapping the edge of said opening, a clamping member loosely pivoted between the walls of the support adjacent the underside of said part and remote from said opening, a threaded member pivotally secured to said clamping member between the ends thereof and screw means operable from the outer side of said part and coacting with said threaded member to move the clamping member into engagement with the other part to be clamped.

7. In a fastening device for clamping two parts together, one of said parts being provided with an opening therein, a support comprising two parallel spaced apart walls, said support being aflixed to the underside of said part and having a portion of each side wall extending through said opening and overlapping the margins thereof, a clamping member having one end loosely pivoted between the side walls of said support adjacent the connecting wall and said part, a threaded member pivotally secured between the ends of said clamping member, a concave washer carried on the outer side of said part and covering said opening, screw means carried by said 

